Part 2 of 3

Chart C2-A - Part 2 Of 3:

Injector Tester Hook-up:

Injector Readings Example:

TEST DESCRIPTION
Numbers below refer to circled numbers on diagnostic chart.

1. The first second of the voltage reading may be inaccurate due to initial current surge, therefore, record the lowest voltage displayed after the first second of test. The voltage reading may increase throughout the test as the injector windings warm and the resistance changes. An erratic voltage reading (one that jumps up and down) indicates an intermittent connection within the fuel injector.

2. From recorded voltages (see example), identify the highest voltage reading recorded (other than those above 9.5 volts). Subtract all other voltages from the highest voltage recorded. The subtracted value for any injector must not exceed O.6 volt.

3. To check the mechanical (fuel delivery) portion of the fuel injector, perform an injector balance test.